A Single Usage of a Kitchen Degreaser Can Alter Indoor Aerosol Composition for Days.

0476323 - ÚCHP 2018 RIV US eng J - Journal Article
Schwarz, Jaroslav - Makeš, Otakar - Ondráček, Jakub - Cusack, Michael - Talbot, Nicholas - Vodička, Petr - Kubelová, Lucie - Ždímal, Vladimír
A Single Usage of a Kitchen Degreaser Can Alter Indoor Aerosol Composition for Days.
Environmental Science and Technology. Roč. 51, č. 11 (2017), s. 5907-5912. ISSN 0013-936X. E-ISSN 1520-5851
EU Projects: European Commission(XE) 315760 - HEXACOMM
Institutional support: RVO:67985858
Keywords : indoor aerosol * mono-ethanolamine * aerosol transformation
OECD category: Environmental sciences (social aspects to be 5.7)
Impact factor: 6.653, year: 2017

To the best of our knowledge, this study represents the first observation of multi-day persistence of an indoor aerosol transformation linked to a kitchen degreaser containing mono-ethanol amine (MEA). MEA remaining on the cleaned surfaces and on a wiping paper towel in a trash can was able to transform ammonium sulfate and ammonium nitrate into (MEA)(2)SO4 and (MEA)NO3. This influence persisted for at least 60 hours despite a high average ventilation rate. The influence was observed using both offline (filters, impactors, and ion chromatography analysis) and online (compact time-of-flight aerosol mass spectrometer) techniques. Substitution of ammonia in ammonium salts was observed not only in aerosol but also in particles deposited on a filter before the release of MEA. The similar influence of other amines is expected based on literature data. This influence represents a new pathway for MEA exposure of people in an indoor environment. The stabilizing effect on indoor nitrate also causes higher indoor exposure to fine nitrates.
Permanent Link: http://hdl.handle.net/11104/0272845